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Middle Data Engineer

Reppls

Reppls

Data Science
Poland
Posted on Oct 6, 2025

For our customer we are looking for middle data engineer.

Your future responsibilities:

  • Design and implement data pipelines using AWS Redshift, S3, and other AWS services.
  • Build ETL/ELT processes for collecting data from game servers, blockchain networks, and third-party APIs.
  • Optimize Redshift performance through query tuning, table design, and data distribution strategies.
  • Develop data models for player behavior analytics, retention, monetization, and engagement.
  • Integrate data from blockchain networks (Ethereum, Polygon, BSC) and NFT marketplaces.
  • Build streaming pipelines for real-time data processing using AWS Kinesis.
  • Work with Web3 data, ensuring accuracy and consistency between centralized and decentralized databases.
  • Develop and maintain infrastructure for A/B testing and statistical analysis.

What we expect from you:

  • 3–5 years of experience in data engineering or a related field.
  • Strong expertise in AWS Redshift, including query optimization and performance tuning.
  • Experience with the AWS ecosystem (S3, Lambda, Glue, Kinesis, and CloudFormation/CDK).
  • Proficiency in SQL and one programming language (Python, Scala, or Java).
  • Hands-on experience with ETL tools (Apache Airflow, dbt, AWS Glue).
  • Solid understanding of data warehousing concepts and dimensional modeling.
  • Experience with version control (Git) and CI/CD practices.
  • Strong problem-solving skills and attention to detail.
  • Excellent communication skills and ability to work in cross-functional teams.

What the company guarantees:

  • Work in a flexible, friendly, and professional team.
  • Opportunity to work with cutting-edge technologies in Web3 and gaming.
  • Fully remote work with a flexible schedule.
  • Company stability and long-term prospects.